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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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</head>
<body>
    <div>
        <button>按钮1</button>
        <button>按钮2</button>
        <button>按钮3</button>

    </div>
</body>
</html>